California, 2017

Heavy Snow in California, January 21 to 22, 2017

January 21 to 22, 2017 · NWS MFR · 2 events in 2 counties and zones

The penultimate in a long series of winter storms brought more heavy snow to northern California.

Where it happened

Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS MFR wrote it up.

The penultimate in a long series of winter storms brought more heavy snow to northern California.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Medford, OR wrote its last area forecast discussion before the first event at Jan 21, 4:33 PM PST, 27 minutes earlier.

Area forecast discussion, Jan 21, 4:33 PM PST, 27 minutes before
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In the hours before

Local storm report, Jan 21, 3:18 PM PST, 1 hour 42 minutes before
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Local storm report, Jan 21, 3:19 PM PST, 1 hour 41 minutes before
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The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

2 heavy snow. Local standard time, as filed.

Heavy Snow, South Central Siskiyou County

When
January 21, 5:00 PM PST to January 22, 1:00 PM PST
Where
South Central Siskiyou County forecast zone
Reported by
Trained Spotter
Coordinates
41.593, -122.540 (the zone’s center; the record gives no point)

A spotter 2SSW Weed reported 14.0 inches of snow overnight as of 22/0500 PST. Snow depth was over 3 feet with many trees down. A spotter in Mount Shasta City reported 8.0 inches of snow overnight as of 22/0830 PST. A spotter 2S Mount Shasta City reported 5.8 inches of snow in 12 hours as of 22/0945 PST. A spotter 4S Weed reported 14.0 inches of snow in 12 hours as of 22/1300 PST. The snow depth was 54 inches.

Heavy Snow, North Central & Southeast Siskiyou County

When
January 22, 12:00 AM PST to 8:00 AM PST
Where
North Central & Southeast Siskiyou County forecast zone
Reported by
Trained Spotter
Coordinates
41.593, -122.540 (the zone’s center; the record gives no point)

A spotter in Tennant reported 12.5 inches of snow in 8 hours as of 22/0800 PST.

What these are

Heavy Snow
Snowfall reaching the local warning threshold without the other hazards of a winter storm.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in California in 2017Every state in 2017This day in weather historyWarnings in California, January 2017

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 668362, 668364.